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Release 4.11 drivers/usb/gadget/udc/mv_udc.h

/*
 * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
 *
 * This program is free software; you can redistribute  it and/or modify it
 * under  the terms of  the GNU General  Public License as published by the
 * Free Software Foundation;  either version 2 of the  License, or (at your
 * option) any later version.
 */

#ifndef __MV_UDC_H

#define __MV_UDC_H


#define VUSBHS_MAX_PORTS	8


#define DQH_ALIGNMENT		2048

#define DTD_ALIGNMENT		64

#define DMA_BOUNDARY		4096


#define EP_DIR_IN	1

#define EP_DIR_OUT	0


#define DMA_ADDR_INVALID	(~(dma_addr_t)0)


#define EP0_MAX_PKT_SIZE	64
/* ep0 transfer state */

#define WAIT_FOR_SETUP		0

#define DATA_STATE_XMIT		1

#define DATA_STATE_NEED_ZLP	2

#define WAIT_FOR_OUT_STATUS	3

#define DATA_STATE_RECV		4


#define CAPLENGTH_MASK		(0xff)

#define DCCPARAMS_DEN_MASK	(0x1f)


#define HCSPARAMS_PPC		(0x10)

/* Frame Index Register Bit Masks */

#define USB_FRINDEX_MASKS	0x3fff

/* Command Register Bit Masks */

#define USBCMD_RUN_STOP				(0x00000001)

#define USBCMD_CTRL_RESET			(0x00000002)

#define USBCMD_SETUP_TRIPWIRE_SET		(0x00002000)

#define USBCMD_SETUP_TRIPWIRE_CLEAR		(~USBCMD_SETUP_TRIPWIRE_SET)


#define USBCMD_ATDTW_TRIPWIRE_SET		(0x00004000)

#define USBCMD_ATDTW_TRIPWIRE_CLEAR		(~USBCMD_ATDTW_TRIPWIRE_SET)

/* bit 15,3,2 are for frame list size */

#define USBCMD_FRAME_SIZE_1024			(0x00000000) 
/* 000 */

#define USBCMD_FRAME_SIZE_512			(0x00000004) 
/* 001 */

#define USBCMD_FRAME_SIZE_256			(0x00000008) 
/* 010 */

#define USBCMD_FRAME_SIZE_128			(0x0000000C) 
/* 011 */

#define USBCMD_FRAME_SIZE_64			(0x00008000) 
/* 100 */

#define USBCMD_FRAME_SIZE_32			(0x00008004) 
/* 101 */

#define USBCMD_FRAME_SIZE_16			(0x00008008) 
/* 110 */

#define USBCMD_FRAME_SIZE_8			(0x0000800C) 
/* 111 */


#define EPCTRL_TX_ALL_MASK			(0xFFFF0000)

#define EPCTRL_RX_ALL_MASK			(0x0000FFFF)


#define EPCTRL_TX_DATA_TOGGLE_RST		(0x00400000)

#define EPCTRL_TX_EP_STALL			(0x00010000)

#define EPCTRL_RX_EP_STALL			(0x00000001)

#define EPCTRL_RX_DATA_TOGGLE_RST		(0x00000040)

#define EPCTRL_RX_ENABLE			(0x00000080)

#define EPCTRL_TX_ENABLE			(0x00800000)

#define EPCTRL_CONTROL				(0x00000000)

#define EPCTRL_ISOCHRONOUS			(0x00040000)

#define EPCTRL_BULK				(0x00080000)

#define EPCTRL_INT				(0x000C0000)

#define EPCTRL_TX_TYPE				(0x000C0000)

#define EPCTRL_RX_TYPE				(0x0000000C)

#define EPCTRL_DATA_TOGGLE_INHIBIT		(0x00000020)

#define EPCTRL_TX_EP_TYPE_SHIFT			(18)

#define EPCTRL_RX_EP_TYPE_SHIFT			(2)


#define EPCOMPLETE_MAX_ENDPOINTS		(16)

/* endpoint list address bit masks */

#define USB_EP_LIST_ADDRESS_MASK              0xfffff800


#define PORTSCX_W1C_BITS			0x2a

#define PORTSCX_PORT_RESET			0x00000100

#define PORTSCX_PORT_POWER			0x00001000

#define PORTSCX_FORCE_FULL_SPEED_CONNECT	0x01000000

#define PORTSCX_PAR_XCVR_SELECT			0xC0000000

#define PORTSCX_PORT_FORCE_RESUME		0x00000040

#define PORTSCX_PORT_SUSPEND			0x00000080

#define PORTSCX_PORT_SPEED_FULL			0x00000000

#define PORTSCX_PORT_SPEED_LOW			0x04000000

#define PORTSCX_PORT_SPEED_HIGH			0x08000000

#define PORTSCX_PORT_SPEED_MASK			0x0C000000

/* USB MODE Register Bit Masks */

#define USBMODE_CTRL_MODE_IDLE			0x00000000

#define USBMODE_CTRL_MODE_DEVICE		0x00000002

#define USBMODE_CTRL_MODE_HOST			0x00000003

#define USBMODE_CTRL_MODE_RSV			0x00000001

#define USBMODE_SETUP_LOCK_OFF			0x00000008

#define USBMODE_STREAM_DISABLE			0x00000010

/* USB STS Register Bit Masks */

#define USBSTS_INT			0x00000001

#define USBSTS_ERR			0x00000002

#define USBSTS_PORT_CHANGE		0x00000004

#define USBSTS_FRM_LST_ROLL		0x00000008

#define USBSTS_SYS_ERR			0x00000010

#define USBSTS_IAA			0x00000020

#define USBSTS_RESET			0x00000040

#define USBSTS_SOF			0x00000080

#define USBSTS_SUSPEND			0x00000100

#define USBSTS_HC_HALTED		0x00001000

#define USBSTS_RCL			0x00002000

#define USBSTS_PERIODIC_SCHEDULE	0x00004000

#define USBSTS_ASYNC_SCHEDULE		0x00008000


/* Interrupt Enable Register Bit Masks */

#define USBINTR_INT_EN                          (0x00000001)

#define USBINTR_ERR_INT_EN                      (0x00000002)

#define USBINTR_PORT_CHANGE_DETECT_EN           (0x00000004)


#define USBINTR_ASYNC_ADV_AAE                   (0x00000020)

#define USBINTR_ASYNC_ADV_AAE_ENABLE            (0x00000020)

#define USBINTR_ASYNC_ADV_AAE_DISABLE           (0xFFFFFFDF)


#define USBINTR_RESET_EN                        (0x00000040)

#define USBINTR_SOF_UFRAME_EN                   (0x00000080)

#define USBINTR_DEVICE_SUSPEND                  (0x00000100)


#define USB_DEVICE_ADDRESS_MASK			(0xfe000000)

#define USB_DEVICE_ADDRESS_BIT_SHIFT		(25)


struct mv_cap_regs {
	
u32	caplength_hciversion;
	
u32	hcsparams;	/* HC structural parameters */
	
u32	hccparams;	/* HC Capability Parameters*/
	
u32	reserved[5];
	
u32	dciversion;	/* DC version number and reserved 16 bits */
	
u32	dccparams;	/* DC Capability Parameters */
};


struct mv_op_regs {
	
u32	usbcmd;		/* Command register */
	
u32	usbsts;		/* Status register */
	
u32	usbintr;	/* Interrupt enable */
	
u32	frindex;	/* Frame index */
	
u32	reserved1[1];
	
u32	deviceaddr;	/* Device Address */
	
u32	eplistaddr;	/* Endpoint List Address */
	
u32	ttctrl;		/* HOST TT status and control */
	
u32	burstsize;	/* Programmable Burst Size */
	
u32	txfilltuning;	/* Host Transmit Pre-Buffer Packet Tuning */
	
u32	reserved[4];
	
u32	epnak;		/* Endpoint NAK */
	
u32	epnaken;	/* Endpoint NAK Enable */
	
u32	configflag;	/* Configured Flag register */
	
u32	portsc[VUSBHS_MAX_PORTS]; /* Port Status/Control x, x = 1..8 */
	
u32	otgsc;
	
u32	usbmode;	/* USB Host/Device mode */
	
u32	epsetupstat;	/* Endpoint Setup Status */
	
u32	epprime;	/* Endpoint Initialize */
	
u32	epflush;	/* Endpoint De-initialize */
	
u32	epstatus;	/* Endpoint Status */
	
u32	epcomplete;	/* Endpoint Interrupt On Complete */
	
u32	epctrlx[16];	/* Endpoint Control, where x = 0.. 15 */
	
u32	mcr;		/* Mux Control */
	
u32	isr;		/* Interrupt Status */
	
u32	ier;		/* Interrupt Enable */
};


struct mv_udc {
	
struct usb_gadget		gadget;
	
struct usb_gadget_driver	*driver;
	
spinlock_t			lock;
	
struct completion		*done;
	
struct platform_device		*dev;
	
int				irq;

	
struct mv_cap_regs __iomem	*cap_regs;
	
struct mv_op_regs __iomem	*op_regs;
	
void __iomem                    *phy_regs;
	
unsigned int			max_eps;
	
struct mv_dqh			*ep_dqh;
	
size_t				ep_dqh_size;
	
dma_addr_t			ep_dqh_dma;

	
struct dma_pool			*dtd_pool;
	
struct mv_ep			*eps;

	
struct mv_dtd			*dtd_head;
	
struct mv_dtd			*dtd_tail;
	
unsigned int			dtd_entries;

	
struct mv_req			*status_req;
	
struct usb_ctrlrequest		local_setup_buff;

	
unsigned int		resume_state;	/* USB state to resume */
	
unsigned int		usb_state;	/* USB current state */
	
unsigned int		ep0_state;	/* Endpoint zero state */
	
unsigned int		ep0_dir;

	
unsigned int		dev_addr;
	
unsigned int		test_mode;

	
int			errors;
	
unsigned		softconnect:1,
				
vbus_active:1,
				
remote_wakeup:1,
				
softconnected:1,
				
force_fs:1,
				
clock_gating:1,
				
active:1,
				
stopped:1;      /* stop bit is setted */

	
struct work_struct	vbus_work;
	
struct workqueue_struct *qwork;

	
struct usb_phy		*transceiver;

	
struct mv_usb_platform_data     *pdata;

	/* some SOC has mutiple clock sources for USB*/
	
struct clk      *clk;
};

/* endpoint data structure */

struct mv_ep {
	
struct usb_ep		ep;
	
struct mv_udc		*udc;
	
struct list_head	queue;
	
struct mv_dqh		*dqh;
	
u32			direction;
	
char			name[14];
	
unsigned		stopped:1,
				
wedge:1,
				
ep_type:2,
				
ep_num:8;
};

/* request data structure */

struct mv_req {
	
struct usb_request	req;
	


struct mv_dtd		*dtd, *head, *tail;
	
struct mv_ep		*ep;
	
struct list_head	queue;
	
unsigned int            test_mode;
	
unsigned		dtd_count;
	
unsigned		mapped:1;
};


#define EP_QUEUE_HEAD_MULT_POS			30

#define EP_QUEUE_HEAD_ZLT_SEL			0x20000000

#define EP_QUEUE_HEAD_MAX_PKT_LEN_POS		16

#define EP_QUEUE_HEAD_MAX_PKT_LEN(ep_info)	(((ep_info)>>16)&0x07ff)

#define EP_QUEUE_HEAD_IOS			0x00008000

#define EP_QUEUE_HEAD_NEXT_TERMINATE		0x00000001

#define EP_QUEUE_HEAD_IOC			0x00008000

#define EP_QUEUE_HEAD_MULTO			0x00000C00

#define EP_QUEUE_HEAD_STATUS_HALT		0x00000040

#define EP_QUEUE_HEAD_STATUS_ACTIVE		0x00000080

#define EP_QUEUE_CURRENT_OFFSET_MASK		0x00000FFF

#define EP_QUEUE_HEAD_NEXT_POINTER_MASK		0xFFFFFFE0

#define EP_QUEUE_FRINDEX_MASK			0x000007FF

#define EP_MAX_LENGTH_TRANSFER			0x4000


struct mv_dqh {
	/* Bits 16..26 Bit 15 is Interrupt On Setup */
	
u32	max_packet_length;
	
u32	curr_dtd_ptr;		/* Current dTD Pointer */
	
u32	next_dtd_ptr;		/* Next dTD Pointer */
	/* Total bytes (16..30), IOC (15), INT (8), STS (0-7) */
	
u32	size_ioc_int_sts;
	
u32	buff_ptr0;		/* Buffer pointer Page 0 (12-31) */
	
u32	buff_ptr1;		/* Buffer pointer Page 1 (12-31) */
	
u32	buff_ptr2;		/* Buffer pointer Page 2 (12-31) */
	
u32	buff_ptr3;		/* Buffer pointer Page 3 (12-31) */
	
u32	buff_ptr4;		/* Buffer pointer Page 4 (12-31) */
	
u32	reserved1;
	/* 8 bytes of setup data that follows the Setup PID */
	
u8	setup_buffer[8];
	
u32	reserved2[4];
};



#define DTD_NEXT_TERMINATE		(0x00000001)

#define DTD_IOC				(0x00008000)

#define DTD_STATUS_ACTIVE		(0x00000080)

#define DTD_STATUS_HALTED		(0x00000040)

#define DTD_STATUS_DATA_BUFF_ERR	(0x00000020)

#define DTD_STATUS_TRANSACTION_ERR	(0x00000008)

#define DTD_RESERVED_FIELDS		(0x00007F00)

#define DTD_ERROR_MASK			(0x68)

#define DTD_ADDR_MASK			(0xFFFFFFE0)

#define DTD_PACKET_SIZE			0x7FFF0000

#define DTD_LENGTH_BIT_POS		(16)


struct mv_dtd {
	
u32	dtd_next;
	
u32	size_ioc_sts;
	
u32	buff_ptr0;		/* Buffer pointer Page 0 */
	
u32	buff_ptr1;		/* Buffer pointer Page 1 */
	
u32	buff_ptr2;		/* Buffer pointer Page 2 */
	
u32	buff_ptr3;		/* Buffer pointer Page 3 */
	
u32	buff_ptr4;		/* Buffer pointer Page 4 */
	
u32	scratch_ptr;
	/* 32 bytes */
	
dma_addr_t td_dma;		/* dma address for this td */
	
struct mv_dtd *next_dtd_virt;
};

#endif

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